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Storage and retrieval of file-level changes on deduplication backup server

  • US 10,387,378 B2
  • Filed: 07/02/2015
  • Issued: 08/20/2019
  • Est. Priority Date: 07/04/2014
  • Status: Active Grant
First Claim
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1. A method for deduplication storage in one or more cloud backup servers, the method comprising:

  • receiving a first backup file through a first backup request from a first client device of a first client;

    generating a first index of the first backup file;

    storing the first index in a first client profile associated with the first client;

    storing the first backup file uploaded by the first client in the one of the cloud backup servers;

    receiving an additional backup file from a second client device of a second client, the additional backup file comprising the first backup file and a second backup file;

    generating a second index of the second backup file and an additional index of the additional backup file, the additional index being a checksum of the entire additional backup file;

    storing, responsive to the additional backup file comprising the first backup file, only the second backup file in one of the cloud backup servers; and

    storing the first index, the second index, and the additional index in a second client profile associated with the second client, the first backup file uploaded by the first client accessible by the second client.

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